Results 41 to 50 of about 2,363 (94)

On the (strict) positivity of solutions of the stochastic heat equation

open access: yes, 2014
We give a new proof of the fact that the solutions of the stochastic heat equation, started with non-negative initial conditions, are strictly positive at positive times. The proof uses concentration of measure arguments for discrete directed polymers in
Flores, Gregorio R. Moreno
core   +1 more source

Weak infinitesimal generator for a stochastic partial differential equation with time delay

open access: yesInternational Journal of Stochastic Analysis, Volume 8, Issue 2, Page 115-138, 1995., 1995
In this paper, we consider the Markov solution process for a stochastic parabolic differential equation with time delay. Under the Lipschitz condition and boundedness on the drift and diffusion coefficient, properties of the weak infinitesimal generator of the associated Markov operators are established.
Mou-Hsiung Chang
wiley   +1 more source

HIGH ORDER PARACONTROLLED CALCULUS

open access: yesForum of Mathematics, Sigma, 2019
We develop in this work a general version of paracontrolled calculus that allows to treat analytically within this paradigm a whole class of singular partial differential equations with the same efficiency as regularity structures.
ISMAËL BAILLEUL, FRÉDÉRIC BERNICOT
doaj   +1 more source

On a Stochastic Partial Differential Equation with a Noisy Term [PDF]

open access: yes, 2004
2000 Mathematics Subject Classification: 60H15, 60H40We review results obtained in [13] and [14] on a one-dimensional Burgers-type stochastic differential equation involving fractional power of the Laplacian in its linear part, perturbed by a white noise
Kolkovska, Ekaterina T.
core  

BSDE associated with Lévy processes and application to PDIE

open access: yes, 2003
International Journal of Stochastic Analysis, Volume 16, Issue 1, Page 1-17, 2003.
K. Bahlali, M. Eddahbi, E. Essaky
wiley   +1 more source

Bound and periodic solutions of the Riccati equation in Banach space

open access: yesInternational Journal of Stochastic Analysis, Volume 8, Issue 2, Page 195-200, 1995., 1995
An abstract, nonlinear, differential equation in Banach space is considered. Conditions are presented for the existence of bounded solutions of this equation with a bounded right side, and also for the existence of stationary (periodic) solutions of this equation with a stationary (periodic) process in the right side.
A. Ya. Dorogovtsev, T. A. Petrova
wiley   +1 more source

A PATCHWORK QUILT SEWN FROM BROWNIAN FABRIC: REGULARITY OF POLYMER WEIGHT PROFILES IN BROWNIAN LAST PASSAGE PERCOLATION

open access: yesForum of Mathematics, Pi, 2019
In last passage percolation models lying in the Kardar–Parisi–Zhang (KPZ) universality class, the energy of long energy-maximizing paths may be studied as a function of the paths’ pair of endpoint locations.
ALAN HAMMOND
doaj   +1 more source

Sub- and Super-solutions of a Nonlinear PDE, and Application to a Semilinear SPDE [PDF]

open access: yes, 2013
2010 Mathematics Subject Classification: 35R60, 60H15, 74H35.We obtain upper and lower bounds for the explosion time of a semi-linear heat equation on a bounded $d$-dimensional domain, perturbed by white noise. The bounds we get are expressed in terms of
Kolkovska, E. T., López-Mimbela, J. A.
core  

An almost sure energy inequality for Markov solutions to the 3D Navier-Stokes equations

open access: yes, 2009
We prove existence of weak martingale solutions satisfying an almost sure version of the energy inequality and which constitute a (almost sure) Markov process.Comment: Submitted for the proceedings of the conference "Stochastic partial differential ...
Romito, Marco
core   +1 more source

The probabilistic approach to the analysis of the limiting behavior of an integro‐diffebential equation depending on a small parameter, and its application to stochastic processes

open access: yesInternational Journal of Stochastic Analysis, Volume 7, Issue 1, Page 25-31, 1994., 1994
Using connection between stochastic differential equation with Poisson measure term and its Kolmogorov′s equation, we investigate the limiting behavior of the Cauchy problem solution of the integro differential equation with coefficients depending on a small parameter. We also study the dependence of the limiting equation on the order of the parameter.
O. V. Borisenko   +2 more
wiley   +1 more source

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